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Hardware Description
2.1.2
LEDs with
Selectable Jumpers
Atmel CPLD Development/Programmer Board has eight individual LEDs, which allow
designers to display the output signals from the user I/Os of the ATF15xx CPLD. These
eight LEDs are labeled LED1 to LED8 on the Atmel CPLD Development/Programmer
Board. The cathode of each LED is connected to ground through a series resistor while
the anode of each LED is connected to a user I/O pin of the CPLD through the
JPL1/JPL2/PL3/JPL4/JPL5/JPL6/JPL7/JPL8 selectable jumper. These jumpers can be
removed to disable the LEDs by unconnecting the anodes of the LEDs to the I/O pins of
the CPLD. Figure 2-3 shows the circuit diagram of the LEDs with the selection jumpers.
To turn on a particular LED, the corresponding ATF15xx I/O pin connected to the LED
must be in a logic high state with the corresponding jumper set. Hence, the outputs of
the ATF15xx need to be configured as active-high outputs in the design files. These
LEDs work best at 2.5V VCCIO or higher.
The lower pin-count devices (44-pin) only have four I/Os connected to LED1, LED2,
LED3, and LED4. For the higher pin-count devices (100-pin and larger), all eight LEDs
are connected to the I/Os of the device. Tables 2-5, 2-6, 2-7, and 2-8 show the connec-
tions of the CPLD I/Os to the LEDs in the different package types.
Figure 2-3. Circuit Diagram of the LEDs and Jumpers
Table 2-5. Connections of ATF15xx 44-pin TQFP to LEDs
LED #
PLD Pin #
LED1
28
LED2
25
LED3
22
LED4
19
Table 2-6. Connections of ATF15xx 44-pin PLCC to LEDs
ATF15xx-DK3 Development Kit User Guide
LED #
LED1
LED2
LED3
LED4
PLD Pin #
34
31
28
25
2-5
3605B–PLD–05/06
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相关代理商/技术参数
ATF15XX-DK3-U
功能描述:ATF15xx Family of CPLD - CPLD Evaluation Board 制造商:atmel 系列:- 零件状态:有效 类型:CPLD 配套使用产品/相关产品:ATF15xx 系列 CPLD 内容:板，线缆，样品 标准包装:1
ATF15XX-SAA100
功能描述:ADAPTER FOR ATF15XX-DK2 100TQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAA44
功能描述:ADAPTER FOR ATF15XX-DK2 44TQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAJ44
功能描述:ADAPTER FOR ATF15XX-DK2 44PLCC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAJ68
功能描述:ADAPTER FOR ATF15XX-DK2 68PLCC RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAQ100
功能描述:ADAPTER FOR ATF15XX-DK2 100PQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF15XX-SAQ160
功能描述:ADAPTER FOR ATF15XX-DK2 160PQFP RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
ATF16DSGTF
制造商:Crane Connectors 功能描述: